ariston water heater help!!

[Theladyplumber]

Hi, hope someone can help. i have recently fitted an ariston europrisma under sink water instantanouse tank, it was working fine on the few times i tested it over a week. no leaks and nice hot water. i have fitted it in a chalet which is only used a few times a year by the owner. they came down on thursday and used the ariston and it was working fine, no leaks and hot water!. however i just got a text to say that when they switched it on this morning, there was no power to the heater (no red light) and no power in the switch for the heater (no red light) and its leaking slightly from the dialectric coupling from the tank....i must have done something wrong but dont know what. the heater has been fitted with pressure reducing valve, pressure relief valve and expansion vessel. could someone please shed some light on what i have done wrong please. hope this picture helps.

 

[fuzzy]

not fitted one myself. is it electricly heated, i presume it is? is the red light on normally when working correctly? if so it would suggest an electrical fault on the incoming supply

is the leak just a leak that can be fixed?

 

[chris watkins]

Where was power supply taken from ? What size cable did you use ?? have you asked them to check the MCB, RCBO or RCD to see if it has tripped.
PS is that a sink or a basin above the heater.

 

[Theladyplumber]

hi yes electrically heated. red light normally on when working

 

[Theladyplumber]

an electrician did the electric side of it, dont know what size cable he used, no idea! customers have chewcked mcb ect and they say its all working fine! and its a sink above the heater

 

[fuzzy]

then surely its an electrical problem, have you checked the wiring? how is it wired?

 

[fuzzy]

is there power to it?

 

[SimonG]

Blown fuse in spur?

Is it leaking from brass FI elbow connected to unit? I know the hyco units state that they must be coupled with flexi's ( sorry system3 )

 

[Theladyplumber]

not now no! it was working fine, then they switched on again to use it and there was no power

 

[tamz]

If the red light on the switch on the wall is not coming on it is an electrical problem.

 

[fuzzy]

not now no! it was working fine, then they switched on again to use it and there was no power

so the issue is an electrical one, yes?

 

[glenno1]

I would check electrical supply,it sounds like a blown fuse

 

[Gary71]

If you have no power coming into the unit then it could be the fuse board(if it's the fuse board it will trip after a couple of minutes), you can normally check this by putting a plug on the heater and taking the juice from the socket and waiting to see if it trips.

If you ever find the fuse blows instantly then it tends to be a defective element.

If you have power coming in and no light on, then either the stat is defective or the overheat has kicked in and requires resetting(try running the heater at a lower temp).

You have a warranty use it.

In a ideal world the expansion vessel would be fitted as close as is practical to the unit and you would have no draw off between the check valve and the unit.

 

[aqualogic7]

and orientation of expansion vessel should be outlet on bottom

 

[chris watkins]

and orientation of expansion vessel should be outlet on bottom

Why ...........?